implement llo processing logic

Author: yiyuan-he

aws-opentelemetry-distro/src/amazon/opentelemetry/distro/llo_handler.py

@@ -550,4 +550,4 @@ def _is_llo_attribute(self, key: str) -> bool:
             if regex.match(key):
                 return True
 
-        return False
+        return False